Reloads records from remote data source.

<div class="definition">
    reload([callBack])
</div>
<div class="arguments">
    <table>
    <tr>
        <td>callBack</td>
        <td><b>function</b>, <i>optional</i>, call back function</td>
    </tr>
    </table>
</div>
Returns <i>undefined</i>.

<h4>Description</h4>

If your data source is remote (the <a class="method" href="w2grid.url">.url</a> property is defined), you can reload records in your grid
by calling the <span class="argument">.reload()</span> method. This method is also called when user clicks the reload button on the toolbar.
If your data source is local, calling <span class="argument">.reload()</span> will be the same as calling
<a class="argument" href="w2grid.refresh">.refresh()</a>
<div style="height: 10px"></div>

If you have grid defined in the following way:
<textarea class="javascript">
let grid = new w2grid({
    name : 'grid',
    url  : 'some/server/url',
    columns: [
        { field: 'recid', text: 'ID', size: '50px' },
        { field: 'lname', text: 'Last Name', size: '30%' },
        { field: 'fname', text: 'First Name', size: '30%' },
        { field: 'email', text: 'Email', size: '40%' },
        { field: 'sdate', text: 'Start Date', size: '120px' },
        { field: 'sdate', text: 'End Date', size: '120px' }
    ]
});
</textarea>

You can reload records:
<textarea class="javascript">
grid.reload();
</textarea>